SC5412A Operating & Programming Manual
Rev 1.1.0
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All RF signal connections (ports) on the SC5412A are SMA-type. Exercise caution when fastening cables
to the signal connections. Over-tightening any connection can cause permanent damage to the device.
The condition of
your system‘s signal connections can significantly affect
measurement
accuracy and repeatability. Improperly mated connections or dirty, damaged or worn
connectors can degrade measurement performance. Clean out any loose, dry debris from
connectors with clean, low-pressure air (available in spray cans from office supply stores).
If deeper cleaning is necessary, use lint-free swabs and isopropyl alcohol to gently clean
inside the connector barrel and the external threads. Do not mate connectors until the
alcohol has completely evaporated. Excess liquid alcohol trapped inside the connector may
take several days to fully evaporate and may degrade measurement performance until fully
evaporated.
Tighten all SMA connections to 5 in-lb max (56 N-cm max)
RF Signal Connections
LO OUT
This port outputs the tunable LO signal allowing phase-coherent daisy-
chaining of multiple IQ modulator modules. The connector is SMA female.
The nominal output impedance is 50 Ω.
RF OUT
This is the main RF signal output port ranging from 400 MHz to 6 GHz. The
connector is SMA female. The nominal input
impedance is 50 Ω.
RF AUX OUT
This is the auxiliary RF signal output port ranging from 400 MHz to 6 GHz.
This port can be used as an alternate path for system-level calibration. The
connector is SMA female. The nominal input
impedance is 50 Ω.
LO IN
This port accepts a tunable LO signal from an external source to drive the
modulator. The connector is SMA female. This port is AC-coupled with a
nominal input impedance of
50 Ω. Maximum input power is +10
dBm.
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